The Kata ABS-HD starts as a pouch about the size of a book. One minute of blowing later, it's a carry-on bag that can protect a full-size camcorder. And that is a really excellent idea.

Basically, the ABS-HD is only a bag when you need it to be. Things that fold up into themselves are always fun—think of those anoraks that you can zip up into their own pockets—but the ABS HD's built-in tube for inflating, which only takes a minute, is an even more impressive feat of transformation.

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Kata points out that it's not a full on camera bag so much as inflatable protection for your gear, so it's intended to be blown up for travel but not necessarily used full-time toting. Still, it has both a handle and a shoulder strap, making it easy to lug on and off a plane, say.